The best way to control weeds in the garden is to prevent them from getting started in the first place. The Preen Extended Control Weed Preventer has a specialized formula to keep weed seeds from starting. The 1-easy application of Preen Extended Control Garden Weed Preventer keeps 125 broadleaf and grassy weeds from sprouting for up to 6-months. Your garden will stay weed-free all season long. Weeds rob desirable plants of water and other nutrients. This easy-to-use weed preventer stops weeds and eliminates time-consuming weed pulling chores. With Preen, you will be free to enjoy a beautiful, weed-free landscape. 1 application of this extended control weed preventer blocks weeds up to 6 months guaranteed When used as directed, Preen Extended Control Weed Preventer can be used around more than 600 perennials, groundclovers, shrubs and trees as listed on the product label High-quality weed preventer can be sold as a refill for flip-top applicator Not intended for use on flower seeds, lawns, vegetable gardens, water gardens or other food-producing or edible plants Not available for sale in NY Covers 3,500 sq. ft. To the extent consistent with applicable law, Lebanon Seaboard Corporation guarantees you will be satisfied with the performance of this product when used as directed, or your money back; if not satisfied, describe the nature of your problem, and send with proof of purchase to Lebanon Seaboard Corporation, 1600 E. Cumberland St., Lebanon, PA 17042